Casio Battery & Solar Powered Scientific Calculator

The Casio FX-991EX is the UK’s most popular ’advanced’ Scientific Calculator. It offers a new high-resolution LC display with 192'63 pixels and a resolution that is four times higher than that of the familiar displays of the FX-ES Plus series.

The Casio FX-991EX is part of the Clazzwiz series. The new ClassWiz series boasts new hardware with a faster processor and double the memory size.

It is commonly used in exams throughout the UK and beyond, permitted by the grand majority of examining bodies. It is recommended and approved for Key Stages 3, 4 and 5 (including GCSE, A-Levels, National and Higher, Junior and Leaving).